Improved apparatus for carbureting air



UNIT D STATES JAS. F. GRIFFIN,

IMPROVED APPARATUS FRANKLIN H. BROWN, OF CHICAGO, ILLINOIS, ASSIGNOR TO HIMSELF AND OF SAME PLACE.

FOR CARBURETING AIR.

Specification forming part of Letters Patent No. 55,950, dated June 26, 1866.

To all whom it may concern.-

Be it known that I, FRANKLIN H. BROWN, of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Carhureters; and I do hereby declare the. following to be a full, clear, and exact description of the same, reference being bad to the accompanying drawings, and to the letters and figures marked thereon,

which form part of this specification.

The nature of my said invention consists in a novel device whereby the remaining fluid in the pans of a carbureting apparatus, after the more volatile parts of the hydrocarbon fluid have been absorbed in the operation of the machine, may be readily and simultaneously drawn off from the various pans aforesaid in a very cheap, convenient, and effectual manner; also providing a carbureting apparatus with a novel device and arrangement for preventing the carbureted air from accumulating at the upper part of the machine and escaping therefrom into the open air.

To enable those skilled in the art to understand how to construct, apply, and use my invention, I will proceed to describe the same with particularity, reference being made in so doing to the aforesaid drawings, in which- Figure 1 represents a vertical section of my invention; Fig. 2, a plan or top view of the same; Fig. 3, a vertical section of another form of a part of my invention. Fig. at is a bottom view of the cap arranged upon the inlet-tube for the admission of air. Fig. 5 is a vertical section of the inlet-tube having the deflector arranged over the top of said tube and acting independent of the cap, that being removed.

Similar letters of reference in the several figures denote the same parts of myinveution.

A represents the exterior casing of the carburetor, in which are arranged, one above another, the shallow pans B O D E F, or any number of pans similarly arranged which may be desired. Each of said pans is provided with a series of vertical partitions, as indicated in Fig. 2. to cause the air entering the inletpipe N to pass in a circuitous passage, as indicated by the arrows in said Fig. 2, before passing down to the pan below.

The pans in the carbureter are divided into two sets, which are supplied with the naphtha at separate points, the upper series of pans, B O, whichmay, however, be of any number desired, being filled in the top at N, or at any other point in the top of the machine when provided with the necessary opening for so doing, while the lower series is filled at 1. As the upper pan is filled, when the naphtha rises to the top of the tube it flows down into the pan 0.

The tube 0 in the pan 0, it will be observed, rises so high that the fluid escapes through the curved pipe at before rising to the top of the tube, and when this occurs the upper series of pans are as'full as desired, the fluid filling them not entering the pans of the lower series, although the air-current freely passes down through the pans of both series and the entire apparatus.

The lower series of pans,filled at I, are filled in the same manner, and when the lower pan is filled to the requisite height it flows out through the pipe h, as before, while the carbureted air passes down through the pipe f to the burners.

One design of the two series of pans is to enable two different grades of the naphtha of difl'erent degrees of specific gravity to be used, the heavier and less volatile fluid in the upper pans and the more volatile fluid in the lower series.

Air passing over the heavy fluid in the upper series alone will not absorb enough of the fluid to produce a desirable light; but by passing down through the lower series, containing the more volatile fluid, enough of the fluid will be added by evaporation to support a brilliant light.

I am thus enabled to utilize the heavy fluid to a great extent, and when the fluid in the lower series of pans shall by evaporation become heavy and unable further to carburet air sufficient to support the required amount of light, the fluid thus remaining may be drawn out, as hereinafter specified, and deposited, if desired, into the upper series of pans, and if the volatile portions of the heavy fluid thus deposited shall there become extracted, so as to be of no further use for carbureting purposes,

the remainder, if there be any, may again bedrawn off, as before.

I place the heavy fluid in the upper part of the machine for two reasons: first, that the fresh air may come in contact with it first and act more powerfully than it would were it already partially carbureted. My second reason is to prevent an undue accumulation of gas in the upper part of the machine and near the inlet-pipe, when themore'volatile portion of the gas might escape.

I have also further provided against the escape of the more volatile portions of the gas by providing the air-inlet pipe with a cap, P, and deflector V. Said cap is arranged upon and over the inlet-tube N in such a manner that the air passes upbetween said pipe and cap, and then down into said tube, as indicated by the arrows.

Deflector V is placed at and around the base of inlet-pipe N, and deflects the air, it in motion, to the mouth of cap P, and causing it to flow into the machine instead of sucking it out, as it sometimes would if the deflector were not used.

Deflector V would perform its office by inverting it over the mouth of pipe N and leaving the cap P off, as shown in Fig. 5; but it could not prevent the more volatile portions of the gas from escaping while the air of the room remains quiet.

The device for drawing off the pans is shown applied to each series of pans, that applied to the upper cries being marked a G H, and that applied to the lower series being marked hL M.

These devices constitute acompound siphon, and operate as follows: The lower part of tube G or L being filled with fluid, as aforesaid, when the pans were filled and each siphon extending down to the bottom of each pan, as shown, by opening the cocks H or M and allowing the fluid in the vertical tubes G or L to flow out the siphons are all put in active operation, and the fluid remainingin the pans will be wholly drawn out from all of the pans,

unless stopped by closing cock H or M.

This part of the invention is shown in another form in Fig. 3, where R represents the vertical pipe, and Sthe series of pipes entering the pans, the siphons being put in operation by drawing down the piston T and exhausting the air in the vertical tube. I11 this arrangement, however, as soon as any one pan should be emptied, so as to admit air into the exhausting-tube, the whole apparatus ceases to act, while in the former arrangement or form each exhausting-pipe acts independently of the other until all are emptied.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. The combination in one device of two or more siphons, arranged and operating substantially as and for the purposes specified and shown.

2. The arrangement of the pans of a carbureter in two or more independent sets, in combination with devices for drawing off the contents of said sets separately and of the pans in each set simultaneously, substantially as specified and shown.

3. The arrangement of a deflector, V, with the inlet-tube N, substantially as and for the purpose described.

4. Providing the inlettube N with a cap, P, arranged as shown, and for the purposes set forth.

5. The combination and arrangement of the deflector V and cap P with the inlet-pipe N, substantially as specified and shown.

FRANKLIN H. BROWN. Witnesses:

W. E. MAUS, Gno. B. NICHOLS. 

